Alex Tomas wrote:
Jeff Garzik (JG) writes:
JG> That is what the entirety of Linux development is -- step-by-step.
JG> It is OBVIOUS that it would take five minutes to start ext4.
right. it's not a problem to *start*. it's a problem it maintain.
day by day fs/ext3 and fs/ext4 will get more and more diffs.
at some point it will be a headache to apply patches from ext3
to ext4 and back. I known this very well ....
As Linus has stated, we have empirical evidence that splitting
filesystems works, for both stability and development speed.
The number of patches to ext[23] will trickle off over time. As the
obvious example, ext4 would receive the extent and 48bit patches rather
than ext3 :)
Jeff
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